// SCAN REPORT

Optuna MCP Server

26 tools. 9 can modify or destroy data without limits.

9 write tools that can modify data. Rate limits recommended.

Last updated: 11 Jun 2026

9 can modify or destroy data

17 read-only

26 tools total

Community server · catalogue entry verified 11/06/2026

How to control Optuna MCP Server ↓

TOOL MAP

Read (17) Write / Execute (9) Destructive / Financial (0)

MOST DANGEROUS TOOLS

High Risk

Execute · Medium launch_optuna_dashboard This tool executes a subprocess or service to start the Optuna web dashboard. Execute · Medium ask The 'ask' tool invokes Optuna's suggestion mechanism to generate new hyperparameter candidates. Write · Medium add_trial Adding a trial creates new data in the study but does not irreversibly delete data or execute arbitrary code. Write · Medium add_trials This tool creates or modifies data in the Optuna study by adding new trial records.

9 of Optuna MCP Server's 26 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

HOW TO CONTROL OPTUNA MCP SERVER

PolicyLayer is an MCP gateway — it sits between your AI agents and Optuna MCP Server, and nothing reaches the server without passing your rules. These are the rules we recommend:

Rate limit write operations

{
  "tell": {
    "limits": [
      {
        "counter": "tell_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations

{
  "best_trial": {
    "limits": [
      {
        "counter": "best_trial_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register Optuna MCP Server — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON OPTUNA →

Free to start. No card required.

ALL 26 OPTUNA MCP SERVER TOOLS

EXECUTE 2 tools

Execute launch_optuna_dashboard Launch the Optuna dashboard Execute ask Suggest new parameters using Optuna

WRITE 7 tools

Write tell Report the result of a trial Write add_trial Add a trial to the study. Write add_trials Add multiple trials to the study. Write create_study Create a new Optuna study with the given study_name and directions. Write set_metric_names set_metric_names Write set_sampler set_sampler Write set_trial_user_attr Set user attributes for a trial

READ 17 tools

Read best_trial Get the best trial Read best_trials Return trials located at the Pareto front in the study. Read get_all_study_names Get all study names from the storage. Read get_directions Get the directions of the study. Read get_metric_names Get metric_names Read get_trial_user_attrs Get user attributes in a trial Read get_trials Get all trials in a CSV format Read plot_contour plot_contour Read plot_edf plot_edf Read plot_hypervolume_history Return the hypervolume history plot as an image. Read plot_optimization_history plot_optimization_history Read plot_parallel_coordinate plot_parallel_coordinate Read plot_param_importances plot_param_importances Read plot_pareto_front plot_pareto_front Read plot_rank plot_rank Read plot_slice plot_slice Read plot_timeline Return the timeline plot as an image.

RELATED SERVERS

Other MCP servers with similar tools — same risk classification, starter policies for each.

FAQ

How do I prevent bulk modifications through Optuna MCP Server? +

The Optuna MCP Server server has 7 write tools including tell, add_trial, add_trials. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach Optuna MCP Server.

How many tools does the Optuna MCP Server MCP server expose? +

26 tools across 3 categories: Execute, Read, Write. 17 are read-only. 9 can modify, create, or delete data.

How do I enforce a policy on Optuna MCP Server? +

Register the Optuna MCP Server MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every Optuna MCP Server tool call.

Deterministic rules across all 26 Optuna MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON OPTUNA →

Free to start. No card required.

26 Optuna MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

Optuna MCP Server

// TOOL MAP

// MOST DANGEROUS TOOLS

// HOW TO CONTROL OPTUNA MCP SERVER

// ALL 26 OPTUNA MCP SERVER TOOLS

// RELATED SERVERS

// FAQ